iis - How do you declare or use variables in web.config -


because our web application using both entityframework , system.data.sqlclient, need have 2 . error prone, need make update both same data.

so wonder if posible add variables web.config xml?

<connectionstrings>     <add name="server" value="sql2014" type="variable" />     <add name="database" value="mydb" type="variable" />     <add name="username" value="sqluser" type="variable" />     <add name="password" value="kaldsommer" type="variable" />        <add name="xreport" connectionstring="data source={server};initial catalog={mydb};user id={username};password={password}" providername="system.data.sqlclient" />      <add name="xentities" connectionstring="metadata=res://*/entities.xmodel.csdl|res://*/entities.xmodel.ssdl|res://*/entities.xmodel.msl;provider=system.data.sqlclient;provider connection string=&quot;data source{server};initial catalog={mydb};multipleactiveresultsets=true;app=entityframework;;persist security info=true;user id={username};password={password}&quot;" providername="system.data.entityclient" />	  </connectionstrings>

pr @bartude reply in comment.

faik, not possible. on other hand maintaining 2 connection strings not complicated, although agree it's best update things once


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